Vibrator



' A ril 12, 1927.-

|.. J. WAHL V I BRATOR Filed June 2a; 1926 Patented .12, 192"].

' UNITED STAT LEO J. want, or s'rEnLmG, ILLINOIS, assmnon TOWAHL cmrrnniconronn'non,

a or srnnnm innmorsh CORPORATION or rumors.

Application filed June as, 1926. serial no. 119,049.

My invention relates to vibrators or agitators and has for its object the provision of an improved device of this nature for the'agitation of the contents of a receptacle in such a manner as to thoroughly mix the a nature and my present application is an improvement over the forms disclosed in said copending applications. It is a prime ob'ect of my present invention to so construct almachine. of this general character, in which a vertically reciprocable element is provided, that all bearings are eliminated. Thus, the machine requires no oiling and themachine is practically fool-proof.

My invention, similar to that disclosed in my. copendin applications, concerns itself primarily wlth the provision of a mechanism in which vibratory or reciprocatory elements are utilized in securing the mixture of the ingredients in the receptacle. To this end I utilize an electro-magnet controlling an armature, which electro-magnet is supplied with undulatory current thus to secure a to and fro movement -01: the armature. In the preferred *form of the invention I preferably supply alternating current of the commercial frequency of sixty cycles to the electro-magnet, thus producing one hundred and twenty (120) to and fro movements of the agitatlng member per second. I find, after considerable experimentation, that I am thus enabled to secure the proper mixture of the ingredients by-this very much simplified device. The vibratory element is given an up and down motion by the electro-magnet, that is, it. re-

ciprocates vertically, and I find that by properly constructing the lower extremity of this agitating member that the contents of the receptacle are given a rotary motion by virtue of this reciprocatory motion of the'agitator. i

I'will explain my inventionmo're-in detail by referring to the accompanying drawings in whichp Fig. 1 is a side view illustrating my im proved device}, certain portions being broken away more clearly to reveal a feature or,

construction vc'erns itself Fig, 2is\a fragmentarycnd-view, and --Fig. 3 is a sectional view on line 3-3 of Fig. 1.'

In-the drawings, I show a standard 1.0 upon which all the parts of my device are mounted. This standard is provided with suitable'means for carrying a receptacle 11 which may consist of'the pivotally mounted supporting element 12 so thatthis receptacle may be inserted in placeor removed therefrom at the wish of the'operator. My improved agitating element 13\is mounted at the extremity of a rod 14, this rod projecting into the said receptacle. This rod is given a vertical reciprocatory movement in order to agitate the contents of this receptacle so as to, cause a thoroughmixing of the ingredients;

My invention concerns itself with the particular desi of this agitating element presently to be escribed more in detail, but, conrimarily with the means for actuating th1s element, that is, the means which bring about the vertical reciprocatory 8 0 movement thereof.v This mechanism' is found at the upper extremity of the standard 10 and consists of an L-shaped .plate of the element'15 supports anelectro-magnet 17 having upwardly extending pole pieces as shown, which are designed to co-- operatewith an armature18. The electromagnet is suitably supplied with alternating current so as to produce a vibration of the armature 18. The armature 18 is mounted upon .a suitable, rather strong spring 19 which is held in place by means of the screws 20 upon the shorter leg of the element 15, .a'. distance piece 21 beinginserted so as'yto' ive the spring 19 freedom of movementi second spring 22 is mounted: upon the longer leg of the element 15 as by screws 93, a similar distance piece 24 being provided for the same purpose as the distance piece 21. The free extremities of the springs 19 and -22support the rod 14 here'- tofore' referred'to, a

In order to securely hold the rod 1n pot- Hr a) rality 0 nuts 25,25 vvhich are sufliciently large so that a portion oithe spring is held/ sition u 'on the springs, I provide a pluconstantly, at right angles to the rod 14/ that is, no bending of the spring occurs between these, fnuts. Suitable lock nuts 26 then further aid to hold these parts in their adjusted position. It will be noted that the springs are adjustable relatively-to-the rod 14 so as to initially adjust their period of response if desired. From this it'will be noted that as the armature 18 is attracted to the pole pieces of the electro-magnet 17 that the rod 14 is given a verticalreciprocatory movement, thus causing a vertical reciprocation of the agitator 13.

I provide further means which may be utilized to adjust the frequency of the s rings 19 and 22 and this consists of a stance piece 27 loosely fitting into a socket 28 provided therefor in the long leg of the element 15, which distance piece 17 cooperates with a screw 29 having screw-threaded engagement with the short le of the element 15 and loosely fitting asocket 30 provided in the upper extremity of the distance piece 17. An adjustment of the screw 29 by means of a knurled finger piece 31 spreads the legs of the element 15, thus to-bring about the desired adjustment of the springs. Y

.The preferred form of agitating element is shown more clearly in Figs. 1 and 3 and this consists of a Z-shaped cross piece 32 securely held in position horizontally at the bottom of the rod 14. This cross piece 32 carries two agitating vanes,3333 which are somewhat flexible, being made of springy material. These vanes 33 are suitably riveted to the legs of the cross piece '32, I find that a yertical reciprocation of the rod 14, thus 3 agitatingmthe contents of the receptacle,

, brings a ut'a rotary motion of these contents whereby thorough admixture thereoi IS I produced.

It will be noted that the device as thus described is free of any and 'all bearings. The movable parts are mounted upon springs so that the device needs practically no attention after having once been put together and adjusted. Its extreme simplicity will also be readily apparent. 7

From what has been thus described, the nature of my inventionwill be readil clear to those skilled in the art and itwill also ceptacle and'a pair of separated horizontally. extending springs upon which said reciprocable means is mounted.

2. device of-the character described comprlsmg a standard, a support "thereon adapted to carry a receptacle and means probe apparent that many modifications may be 1 made without departing from its spirit.

jecting in part into said receptacle for agitating the contents thereof, said means includ ing an electro-magnet and a cooperating spring mounted vertically vibratory arma ture. V

3. A device of the character described comprising a 'standard, a support thereon adapted to carry a receptacle and means projecting in part into said receptacle for agitating the contents thereof, said means including an electro-magnet, a cooperating 7 spring mounted vertically vibratory armature and an'agitator controlled by said armature.

4. device of thecharacter described comprising an agitator adapted to agitate the contents of a receptacle and means for vertically reciprocating said agitator, said agitator'comprising a pair of oppositely extending vanes mounted side by side adapted when reciprocating vertically to cause a ro- 85 tation of the liquid in said receptacle.

5. A device of the character described comprising an, agitator adapted to agitate the contents of a receptacle/and means for Vertically reciprocating said agitator, said 99 agitator comprising a pair of oppositely ex-' tending vanes mounted side by side adapted -when reciprocating vertically to cause a ro-. tation of the liquid in said receptacle, one extremity of one vane being fixedly supported and the opposing extremity of the other vane being fixedly supported.

6. A device of the character described comprising a standard, a support thereon adapted to carry a receptacle, and means projecting in part into said receptacle for agitating the contents thereof, said means including an electro-m'agnet, acooperating vertically vibratory armature and a pair of parallel springs for supporting said armature. a v

7 A device of the character described comprising/"a standard, a support thereon adapted to carry a receptacle, and means projecting in part into said receptacle for agitating the contents thereof, sald means including an elect-ro-magnet, a cooperating verticallyvibratory armature, a pair of parallel springs for supporting said armature and an a 't-ator controlled by said armature.

8. A. evice i of the character described comprising an agitator adapted to project into and agitate the contents of arreceptacle and means for vertically reciprocating said agitator, said agitator comprising a vertical stempsu porting means projecting from said stem an elongated resilient vanes each having one end secured to saidmeans, said vanes extending in opposite directions- 1 In witness whereof, I hereuntosubscribe r'n'y'name this 18th day of June, A. D., 1926.

LEO J. WAHL. 

